e36dd2785c069e545a7049167f562ce2651ffa7a6a0d954685f47d4d2afd985b

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 01:22

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-02-12_06b1038ffdcbfce069462a8397ed0753_cryptolocker.exe
Size

62KB
MD5

06b1038ffdcbfce069462a8397ed0753
SHA1

7a5c8efd9fda71644a3c1ca9bc447241c6e0604e
SHA256

e36dd2785c069e545a7049167f562ce2651ffa7a6a0d954685f47d4d2afd985b
SHA512

2c58d99cc62159ecfef44b634cbacfce190f14998ed2db241cc34c412609ef0d62f4f4cc4109f0a3e3384233b34e56eb300df11e21cfbf3776c0564132fbeeed
SSDEEP

768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mnVR:zj+soPSMOtEvwDpj4kpmeLmnr

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012270-11.dat	CryptoLocker_rule2
behavioral1/memory/2220-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2052-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012270-11.dat	CryptoLocker_set1
behavioral1/memory/2220-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2052-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x0009000000012270-11.dat	UPX
behavioral1/memory/2220-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2052-25-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2052	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2220	2024-02-12_06b1038ffdcbfce069462a8397ed0753_cryptolocker.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012270-11.dat	upx
behavioral1/memory/2220-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2052-25-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2052	2220	2024-02-12_06b1038ffdcbfce069462a8397ed0753_cryptolocker.exe	28
PID 2220 wrote to memory of 2052	2220	2024-02-12_06b1038ffdcbfce069462a8397ed0753_cryptolocker.exe	28
PID 2220 wrote to memory of 2052	2220	2024-02-12_06b1038ffdcbfce069462a8397ed0753_cryptolocker.exe	28
PID 2220 wrote to memory of 2052	2220	2024-02-12_06b1038ffdcbfce069462a8397ed0753_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_06b1038ffdcbfce069462a8397ed0753_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_06b1038ffdcbfce069462a8397ed0753_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
62KB

MD5
f7278d33ab198ae3cd19f77368e43be8

SHA1
4202527b08e26238b0b34e9d4424697fcc696d6d

SHA256
8b693969b209e3912bd9861b6c2a52c5af3433cd4ea417ff9a8641c83322e5b8

SHA512
ebf1449b92dfe714b10b2303209103db2334db2abee1587462265e5f586873956874cdef8e10623fef1792d1bfdaeb1e758aad78727db6c100619fc03837778f

Download Submit
memory/2052-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2052-23-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2052-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2220-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2220-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2220-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2220-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2220-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download